Kinoco Hacker Hands-on security practice
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Cryptography Level 2 75 points

RC4 Stream Cipher Weakness

Mission

RC4 was once widely used but is now deprecated. This introductory task focuses on recognizing the provided data format. Base64 string: S0lOT0NPe3JjNF9pc19kZXByZWNhdGVkfQ== This is not actually RC4 ciphertext. Decode it as Base64 to obtain the flag.

#cryptography#rc4#stream-cipher#base64

Clear it in 3 steps

Not started

  1. No environment needed

    This challenge can be solved with the information in the statement alone. Submit the flag you find directly.

  2. Submit the flag